Locomotive condenser



July 14, 1925.

F. LJUNGSTRM LOCOMOTIVE CONDENSER Filed Nov. 21,' 1921 @FMIIIIII Cil Fate-fated July 14, i925.

UNTED STATES remar PATENT orties.

FREDRIK LJUNGSTRM, OF BREVIK, LIDINGON, SWEDEN, ASSIGNOR T AKTIEBOLA- GET LJUNGSTRMS ANGTURBN, OF STOCEHOLI', SVEDEN, A CORPORATION.

LOCGMOIVE CONDENSER.

Application filed November 21, 1921. Serial No. 516,831.

To all colto-m may conce/rn:

Be it known that l, Fnnnnni LJUNG- s'rnM, a subj ct of the King oi' Sweden, residing at Brevil, Lidingon, Sweden, have invented certain new and useful Improvement in Locomotive Condensers, of which the following is a specification.

ln locomotives it has hitherto been diliticult 'to provide condensers serviceaole for all loads.

rlhe present invention has for its object to provide an effective form of a condenser device and consists substantially in a liquidreceptacle serving as a mining condenser and containing water adapted to take up and give oit' heat alternately, and an aircooled device consisting ot closed elements through which and the receptacle water ot condensation together with cooling water are caused to circulate by means oi: one or more pumps for the purpose of cooling, said elements being connected at the ends to two points oit the liquid-receptacle, one or more 'fans being arranged which force the air between the elements.

In the annexed draiving:

Figs. l and 2 show diagrammatically a side view and a section respectively oit an embodiment of the invention. Figs. 3, and show the shape ot the cooling elements, Fig. 2 being a partial sectional elevation oi: a cooling element, Fig. lacross section along the line IV IV of Fig. 3 and Fig. 5 an enlarged sectional view taken on the line V-#V oil Fig. 3 of part ot a cooling element.

Referring to l and 2, the condenser device consists ot a receptacle l and an aircoolcd part 2 which, in the embodiment shown, is located beneath the receptacle l. The receptacle l contains a comparably great quantity ot water or other liquid, in order that heat may be accumulated in the same in all cases where the steam engine gives ott1 the greatest possible amount of energy, the heal' raising the temperature of the water or other liquid in the receptacle. Vl`hc water is discharged in the proximity ot the upper surface of the water through the pipe 3 to the air-cooled device 2, and the water cooled in the latter is admitted at the bottom orP the liquid-receptacle l through the pipes 4L. The cooling elements, the constriution ot which will be described later on with reference to Figs. 3, l and 5,

are placed between upper collecting pipes 5 and 6 and a lower collecting pipe 7 at about right angles to' the direction of movement of the vehicle.

To obtain sufficient circulation of the air the condenser is provided with fans 8 placed beneath the receptacle l and above the air-cooler 2 and forcing the' air from below and upwards through the air-cooler.

rlhe receptacle l is provided with a diaphragm 9 and is further divided by a partition l0 into two chambers, an upper chamber ll in which the diaphragm 9 is located and a lower chamber 12. The steam entering the receptacle through the inlet opening 13 is condensed in known manner by the water liowing down in a vfinely divided state from the diaphragm 9, said waiter being heated thereby. The chamber 1l is connected through the pipes 3 collecting pipes 5 and 6 of the cooling elements, the heated water thus being cooled by passing through all the elements or" the air-cooled device 2 and then entering the lower chamber l2 of the receptacle l through the inlet pipes 4L. From the chamber 12 the water is pun'iped up to the diaphragm 9 l y means of a pump 14 so as to again take up heat from the steam." rlhe pump let causes a circulation of water through the receptacle l, pipes 3, elen'ients 2 and pipesr lback to the receptacle.' The pump 14C' is driven, if desired, by the same shaft as any one ot' the fans 8. e

The water in the receptacle l, the tempera-- ture ot which is raised by the steam and cooled by the air-cooler may vary rather considerably to the temperature which depends, on the one hand upon the quantity ot steam given oft by the steam engine and, on the other hand, upon the quantity of water in the receptacle. Consequently, it is of advantage to use as large quantities of water as possible in the liquid-receptacle.

The air-cooler operates continuously independent o'f the steam entering the receptacle, and by this the advantage is gained that the mining condenser need not be constructed for the greatest quantity of steam given oit by the steam engine, especially in case of locomotives in which the engine does not always operate at full admission but at times for a long` while is stopped or carried Jforward inoperative and consequently does not give any steam.

with the upper l Preferably the receptacle is of lengthy form in the direction of movement Vof the locomotive, in order that the air-cooled device may be as long as possible.

Accordingto Figs.A 3, i and 5 the cooling velements 2 consist of flattened pipes inserted in groups into the square collecting pipe l5. The elements are provided with projecting ribs or `flanges 16 in order to produce an increased cooling` surface. Fig. 5 shows in section an element drawn'to an enlarged scale, both sides of the flattened pipe beingprovided with depressions 17 in contact with each other lat their inwardly directed vertices to prevent the sides from being squeezedtogether should the vacuum in the element be extremely high.

For the pipes 3 may be substituted {iattened pipes placed at the side of one another and formingk a'cooler' of the same type as the cooler 2. v

i that is claimed as new and desired to be secured by Letters-Patent is:

l. A condenser device for locomotives and similar' Yvehicles comprising a receptacle serving as a mixing condenser and containing water adapted to take up and give off heat alternately, a re-coo'ling device consisting oi closed elements, means for connecting said elements at their ends to two points of the receptacle, means foncausing water of condensation together with vcooling water to circulate through said receptacle and clements, and means for causing air to pass between said elements for the purpose of cooling said water ot condensation and cooling water.

2. A condenser device for locomotives similar vehicles comprising a receptacle eX- ten'ding longitudinally oi the locomotive and serving as a mixing condenser and containing water adapted to take up and give oft heat alternately, a re-cooling device consisting of closed elements extending transversely of the locomotive, means for connecting said elements at their ends to two points of the receptacle, means tor causing water of condensation together with cooling water to circulate through said' receptacle and elements,'and means ior causing air to pass between lsaid elements for the purpose of cooling said water of condensation and cooling water.

3. A condenser device for locomotives and similar vehicles comprising a receptacle serving as a mixing condenser and containing water adapted to talier up and give 0H' heat alternately, a re-cooling device consisting of closed elements, means for connecting said elements at their ends to two points ot the receptacle, a pump for causing water. of condensation together with cooling water to circulate through said receptacle and elements, and a tan for causing air to pass between said elements for the purpose orn cooling said water of condensation and cooling water. A

4i., A condenser device for locomotives and similar vehicles comprising a receptacle serving as a mixing condenser and containing water adapted to' take up and give off heat alternately, a' re-cooling device consisting ot closed elements, said elements being connected to the receptacle at their one end immediately beneath the water level in same and at their other ends near the bottom ot same, means for causing vater of condensation together with cooling water to circulate through said receptacle and elements, and means for causing air to pass beneath said elements for the purposeot cooling said waterof condensation and cooling water.

In testimony whereof aliiX'my signature in presence of two witnesses.

i rnnnnrn LJUNosTnoM. Vfitnesses EUG. SwENsoN, Emo HOLGA.l 

